Separate your egg yolks and the whites....preheat oven to 180 degrees c

Whisk your egg whites till they form stiff peaks

Add in your yolks one at a time as you beat your mixture...and escence

Add in your sugar,a tablespoon at a time to avoid deflating your miture...continue beating

Sift your flour and cocoa powder...use a spatula to gently fold in the flow and cocoa.